Bring calm, focus, and clarity to Lume
Shedding light on your workflow. A focused collection of utility tools designed to simplify complexity, reduce friction, and make everyday work feel lighter.
Inspired by Lumen, the brand centers on light as a metaphor for clarity: subtle glass surfaces, soft glows, and a quieter interface that helps your tools stay out of the way.
AI Background Remover
Remove image backgrounds instantly using client-side AI. Private, fast, and free.
Advanced Image Cropper
Crop images with precision using fixed ratios or freeform selection.
Precise Color Picker
Pick exact colors from any image with a magnifying loupe for pixel-perfect selection.
Image Resizer
Scale images to specific dimensions while maintaining aspect ratio or force stretching.
Smart Image Compressor
Reduce file size significantly without visible quality loss for web optimization.
Watermark Creator
Protect your images by adding custom text or image watermarks with transparency control.
Built for the way you actually work
No fluff. No friction. Just tools that show up when you need them.
Start Instantly
No setup, no configuration. Open a tool and start working right away. Free plan included.
Privacy First
Everything runs directly in your browser. Your data never leaves your machine.
Instant Results
No loading screens, no API calls, no waiting. Open a tool and get your output immediately.
Purpose-Built
Each tool does one job and does it well. Clean interface, sensible defaults, polished output.
Three steps. Zero friction.
Lume tools are designed to get out of your way and deliver results fast.
Find your tool
Browse by category or search by name, feature, or keyword. Every tool is one click away.
Open instantly
No installs, no sign-ups, no loading bars. The tool opens directly in your browser.
Copy or export
Get your result in seconds. Copy to clipboard, download a file, or use the generated code directly.
Built with care. Not corners cut.
Most tool sites ship fast and iterate never. Lume is designed with intention — every detail considered, every output polished.
Typical tool sites
Bloated interfaces with dozens of half-baked features
Output that needs heavy cleanup before it's usable
Slow, server-dependent processing with loading delays
Tools that try to do everything and do nothing well
Distracting ads, banners, and dark-pattern upsells
Inconsistent results across browsers and sessions
Lume
Always freeFocused interfaces — one tool, one clear purpose
Polished, production-ready output from the first try
Instant browser-based processing with no waiting
Every tool does exactly one job, exceptionally well
Calm, distraction-free experience throughout
Consistent, reliable results every single time
What developers & designers say
Real feedback from the people who use Lume in their daily workflow.
“I use the JWT Decoder and Regex Tester almost every day. Opens instantly, works perfectly. Exactly what a dev tool should be.”
Alex M.
Senior Backend Engineer
“The Color Palette Extractor saved me hours on a client rebrand. Pulled WCAG-compliant colors straight from their brand imagery in seconds.”
Priya S.
UI/UX Designer
“The JSON to TypeScript converter alone is worth bookmarking this site. Clean output, deep object support, multi-language — brilliant.”
Jordan K.
Full-Stack Developer
“The Glassmorphism Generator cut our design-to-dev handoff time significantly. The CSS output is clean and production-ready.”
Camille R.
Frontend Lead
“Lume's Cron Generator finally demystified scheduling for me. The plain-English explanation next to the expression is a brilliant touch.”
Marcus T.
DevOps Engineer
“The Typography Calculator exports directly to our Tailwind config with zero friction. Recommended it to our entire design team.”
Yuki N.
Design Systems Lead